Abstract:
In a method of controlling an automatic clutch arranged between an engine and a drive train of a vehicle in vehicle startup situations wherein the clutch is engaged to such a degree that only a small torque can be transmitted through the clutch and wherein the clutch is increasingly engaged when engine power output is increased, the clutch is immediately returned toward disengagement if, during vehicle startup, the engine power output requirements are suddenly reduced and, after a predetermined delay, the clutch is adjusted to the new situation that is to a standstill of the vehicle or to a renewed startup situation.
Abstract:
An installation for damping vibrations in the drive connection of a motor vehicle by a vibration absorber which includes, in coaxial arrangement with the cardan shaft, an annular vibrating mass, a carrier flange adapted to be secured to the cardan shaft, and a resilient body of an elastomeric material which effects the vibration coupling of the vibrating mass with the carrier body of the carrier flange; stiffening elements are inserted into the resilient body which serve as stiffening elements effective in the radial direction; additionally apertures are provided in the resilient body on both sides of the stiffening elements which enable an intentional reduction of its torsional stiffness so that a resonant frequency rate f.sub.r /f.sub.t of 2.5 or more can be realized for the vibration absorber.
Abstract:
In a method of controlling an automatic clutch disposed between a motor, especially an internal combustion engine, and the drive train of a vehicle which includes an arbitrarily operable transmission, the clutch is engaged in dependence on the torque generated by the motor in such a manner that the torque which can be transmitted by the clutch is only slightly above the motor-generated torque and, immediately after a transmission ratio change, the clutch is first fully engaged for the transmission of maximum torque if the motor torque exceeds a certain threshold value.
Abstract:
In a control for an automatic clutch disposed between the engine and the drive train of a vehicle for controlling the vehicle movement at start or during transitional phases, the clutch is controlled in such a way that, with a predetermined low engine speed, movement of the vehicle at a predetermined creeping speed is obtained.
Abstract:
In an arrangement of a running roller on a coupling journal of a coupling half of a moveable shaft coupling, a radial rolling bearing, the inner ring of which is connected to the coupling journal by a ball joint, is inserted into the running roller. In order to maintain an additional degree of freedom for the relative movements of the coupling journal in relation to the complementary coupling half in the directions perpendicular to the central axis of the latter, either the running face of the running roller is configured cylindrically or the rolling bearing is configured as a loose bearing.
Abstract:
A twin clutch has two clutch discs, each arranged on one of two coaxial shafts, having a clutch cage, which surrounds the clutch discs in the manner of an annulus, and having pressure plates which are held in a rotationally fixed manner therein and are arranged axially in such a way that they can be displaced separately axially between the clutch discs and can be pressed against the clutch discs by a diaphragm-spring arrangement arranged axially between them and can be disengaged from the respective clutch disc by means of separate release members. The diaphragm-spring arrangement includes at least two diaphragm springs of essentially the same type arranged in series, giving a broad actuating range with a constant spring force. When the release members are unactuated, the diaphragm-spring arrangement operates in this actuating range irrespective of clutch wear, it being possible to transmit approximately half of a maximum torque to be transmitted at each clutch.
Abstract:
A rear wheel steering is operated by a mechanical gear, which is connected on an input side to a front wheel steering. The gear has a controllable transmission ratio, a control element controlling the transmission being adjusted against spring force by a self locking free positioning motor. In the event of failure of a control unit operating the positioning motor as a function of the travelling speed, a maximum transmission ratio for deflection in the same direction of the front wheels and rear wheels is set by spring force.
Abstract:
A split flywheel construction having a spring arrangement coupling two flywheel elements together which works by friction dependent on centrifugal force, so that the coupling of the flywheel elements is stiffened at higher speeds. At operating speeds, an undesirable flexibility of a drive train is thereby prevented while at low speeds and with low friction a low resonant frequency is obtained below the vibration frequencies occurring in the drive train at these speeds.
Abstract:
An installation for damping vibrations of a drive axle, especially of a rear axle, of motor vehicles, in which the driving pinion of the differential gear which meshingly engages with the spur bevel gear, is driven by way of a universal joint shaft and in which the output from the differential gear onto the axle half-shafts takes place by way of one synchronizing joint each; for purposes of changing the resonant frequency of the system, additional annular parts constructed of shell-shape are clamped onto that part of the synchronizing joint which is connected with the output of the differential gear.
Abstract:
An installation for damping vibrations in the drive connection of motor vehicles with the aid of a vibration absorber whose absorber mass is constructed as annular body and is connected with at least one driving part of the drive connection by means of an elastic member of rubber or analogous material; the connection between the transmission output shaft and the universal joint shaft is thereby split up from a vibrational point of view by an elastic coupling soft in the radial direction while the vibration absorber is coordinated to the input of the universal joint shaft.